CN103272975B - Movable profiling device for thread rolling machine - Google Patents
Movable profiling device for thread rolling machine Download PDFInfo
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- CN103272975B CN103272975B CN201310235333.8A CN201310235333A CN103272975B CN 103272975 B CN103272975 B CN 103272975B CN 201310235333 A CN201310235333 A CN 201310235333A CN 103272975 B CN103272975 B CN 103272975B
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- thread rolling
- profiling
- bracket
- pattern
- guide rail
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Abstract
The invention relates to a movable profiling device for a thread rolling machine. The movable profiling device comprises a profiling guide rail installed on a thread rolling machine tool body, a profiling bracket capable of sliding on the profiling guide rail is arranged on the profiling guide rail, the profiling bracket is provided with an arc concave or an inner rolling arc concave matched with external circle surfaces of workpieces, and the profiling bracket moves at a speed half of that of a thread rolling plate through a transmission facility. According to the movable profiling device, the profiling bracket is adopted, tails of rod-shaped workpieces can be supported in a machining process, the problem of shaking of the tails of the rod-shaped workpieces during machining is solved effectively, and the machining accuracy and quality of the workpieces are improved; and the semi-circular concave design is adopted, so that the profiling bracket can restraint the workpieces effectively without interfering machining of the workpieces, the structure is quite simple, and the complex problem of statical indetermination is solved through the simplest design.
Description
Technical field
The present invention relates to the one activity copying apparatus of thread rolling machine, is a kind of machining servicing unit, is a kind of auxiliary processing device for thread rolling machine.
Background technology
Along with the change in market, the kind of the fastener products such as bolt, screw gets more and more, and the shape of product becomes increasingly complex and variation, manufactures unconventional securing member and proposes the various problem needing to solve to the producer.For twisting the screw thread of overlength bar one end and special-shaped non-standard screw thread and special-shaped Cylinder.Ball-type roll extrusion part etc., due to the length of effectively processing and the long gap of bar larger, it is indefinite that center of gravity is rocked above, the power of short machined surface is difficult to control stock and rocks, the method with human assistance in a conventional manner, namely in long bolt process with the hand steered screw rod tail firmly rocked, make that screw rod is stable to be rotated.This method productivity ratio is very low, less in screw rod production lot, can also tackle when concentricity precision is not high, and this method labor strength is large, high to operative's technical requirement. and the manually hand steered workpiece of little to workpiece, bad use just can not processing.
Summary of the invention
In order to overcome the problem of prior art, the present invention proposes the one activity copying apparatus of thread rolling machine, described copying apparatus can be synchronized with the movement with workpiece, makes the afterbody of workpiece keep stable, ensures workpiece processing quality.
The object of the present invention is achieved like this: the one activity copying apparatus of thread rolling machine, comprise: be arranged on the pattern guide rail on thread rolling machine lathe bed, described pattern guide rail is provided with can at the pattern bracket of pattern slide on rails, it is recessed that described pattern bracket is provided with the circular arc matched with excircle of workpiece face, and described pattern bracket is moved with the speed of relative screw plate 1/2 by transmission facility.
The beneficial effect that the present invention produces is: the present invention adopts pattern bracket, the afterbody of workpiece in process of stock Xing Huo center shakiness is supported, afterbody when effectively solving stock shape and abnormal workpieces thread rolling and roll rocks problem, improves thread rolling and rolls the precision of product and quality and production efficiency.The present invention also simply takes the recessed design of semicircle, makes pattern bracket to the constraint of workpiece namely effectively, do not disturb work pieces process again, and structure is very simple.With the most simply designing the problem solving indeterminate such complexity.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described.
Fig. 1 is the structural representation of device described in embodiments of the invention one;
Fig. 2 is the profiling structure schematic diagram of device described in embodiments of the invention one, is the profile in A-A direction in Fig. 1;
Fig. 3 is the circular arc recessed schematic diagram of device described in embodiments of the invention two with rolling element, is the profile in A-A direction in Fig. 1;
Fig. 4 is the transmission facility structure schematic diagram of device described in the embodiment of the present invention three;
Fig. 5 is the schematic diagram of device roll extrusion bulb described in the embodiment of the present invention one.
Detailed description of the invention
Embodiment one:
The present embodiment is the one activity copying apparatus of thread rolling machine, as shown in Figure 1, 2.The present embodiment comprises: be arranged on the pattern guide rail 4 on thread rolling machine lathe bed 1, described pattern guide rail is provided with can at the pattern bracket 6 of pattern slide on rails, described pattern bracket is provided with the circular arc recessed 601 matched with excircle of workpiece face, and described pattern bracket is moved with 1/2 speed of relative screw plate by transmission facility 3.
Thread rolling machine described in the present embodiment is conventional thread rolling machine, with slip screw plate bracket 8 and a pair screw plate 9 of routine.
Described pattern guide rail can be directly installed on lathe bed, but uses a support 2 to be indirectly arranged on lathe bed under normal conditions, as shown in Figure 1.Because guide rail can not use same material with support under normal circumstances, so generally will separate, but for simplicity, in Fig. 1, rail brackets and guide rail are depicted as one.The length of guide rail should be longer than the movement length of workpiece 7 in thread rolling process.Guide rail can use the guide rail of square-section as shown in Figure 1, also can use the guide rail of dove tail cross section, or the guide rail of other cross sectional shapes.
Slide block on normal conditions lower guideway does not use identical material with the pattern bracket of slip, therefore, pattern bracket described in the present embodiment is provided with the slide block 5 at slide on rails, slide block can use bolt or other modes to be fixedly connected with pattern bracket, and such pattern bracket just can along guide rail movement under the constraint of guide rail.
What the present embodiment mainly solved is that stock shape workpiece 7 is when head thread rolling, there is no the problem that the afterbody of thread rolling shakes in thread rolling process, as shown in Figure 1, head thread rolling between two pieces of screw plates of workpiece, the relatively whole bar of screw thread of institute processing part is long shorter, stock very easily rocks in process, interference processing part.Eliminate this to rock, without the need to too large restraining force, and too large constraint also may disturb the thread rolling of workpiece to process on the contrary.For this reason, the present embodiment sets up a semicircle recessed on pattern bracket with the position of absorption surface, make the motion of workpiece in thread rolling process in semicircle is recessed, be subject to certain constraint.The recessed action of semicircle is less than or equal to radius, also can be that segment length's groove connects a semicircle to form semicircle recessed.The recessed radius of curvature of semicircle should slightly larger than the radius of workpiece.Such workpiece is in and is not namely retrained completely in motion process, and the semi-constrained state also do not retrained completely, namely can avoid rocking, have and can avoid interference processing.This is one and designs very cleverly, under normal conditions, adopt the rotation condition of one dimension or two dimension for realizing similar constraint more, but the hinge that such constraint uses is very complicated, and the present embodiment is according to actual conditions, simply employ the way of restraint that semicircle is recessed, reach best effects: solve complicated engineering problem by the simplest mode.Rolling element can also be set in arc-shaped surface during semicircle is recessed, make to form rolling friction between the recessed and workpiece of semicircle, reduce frictional resistance.
The motion-promotion force of pattern bracket comes from transmission facility.Described transmission facility can be pure machine driving, such as: transmission, the lever drive of rack and pinion, also can use electric transmission, if stepper motor or servomotor are by gear and tooth bar, or the mode such as leading screw, also hydraulic drive can be used, or the mode such as Pneumatic Transmission.Its transmission main points are that the movement velocity of pattern bracket becomes the ratio of 1/2 with the movement velocity of slide thread rolling splint.Because processed workpiece is columniform, be similar to and roll in the plane in thread rolling process, i.e. the motion that launches of excircle, what the motion in the center of circle of workpiece then launched with excircle moves into 1/ π equals 1/2 ratio than the ratio of 2/ π.
All right roll extrusion bulb between pattern described in the present embodiment, as shown in Figure 5.When roll extrusion bulb, be through the center of bulb as gyroaxis with a mandrel, and be that the afterbody of gyroaxis leans against on pattern support, make bulb keep gyrostabilized platform in roller compaction process.
Embodiment two:
The present embodiment is the improvement of embodiment one, is embodiment one about the recessed refinement of circular arc, as shown in Figure 3.The inner peripheral surface that circular arc described in the present embodiment is recessed is uniformly distributed rolling element 6011.
Be provided with rolling element during circular arc described in the present embodiment is recessed, the sliding friction by circular arc between recessed and workpiece becomes rolling friction, reduces frictional resistance between the two, makes workpiece more smooth in motion process.Described rolling element can be along the recessed gyroaxis of circular arc to the cylindrical rolling element installed, and also can be type ball rolling body.Rolling element directly can be embedded in the recessed surface of circular arc, also can be suspended on arc surface by retainer.
Embodiment three:
The present embodiment is the improvement of embodiment one, two, is the refinement of embodiment one, two about transmission facility, as shown in Figure 3.Transmission facility described in the present embodiment comprises: be arranged on the lathe bed tooth bar 301 on lathe bed with pattern guide rail parallel, the sliding rack 303 on thread rolling machine slip blade is installed in parallel in described lathe bed tooth bar, be provided with between described lathe bed tooth bar and sliding rack and lathe bed tooth bar and sliding rack meshed gears 302 simultaneously, the gyroaxis 3021 of described gear is arranged on described pattern bracket.
The present embodiment is the design of a kind of double rack, use two tooth bars, the present embodiment is used in the gear rolled between two tooth bars done relative motion cleverly, and the speed that its rolling is advanced becomes the ratio of 1/2 with the speed of tooth bar relative motion, achieve the proportional motion of 1/2.Without the need to the control system of any complexity, and the speed change gear of complexity, just can realize the proportional motion of 1/2.
The motion-promotion force of the present embodiment comes from the motion of thread rolling splint, by the motion-promotion force of thread rolling splint, synchronous gear bar driven gear moves, and the kinematic constraint of gear has another tooth bar be fixedly mounted on lathe bed to provide, the motion of final formation is as gear nonslipping rolling on lathe bed, its speed of rolling is determined by thread rolling splint, and the movement velocity of gear gyroaxis is just in time then 1/2 of gear foreign aid linear velocity.Be better still that the diameter of this rolling ratio and processing work has nothing to do.So no matter twist the workpiece of any diameter, all do not adjust the speed of pattern bracket, the movement velocity of pattern bracket meets the requirements naturally.This odds ratio comparatively other kinds of drive is come, its advantage is fairly obvious, as long as because any other kind of drive have adjusted diameter of work or changes thread rolling speed, all needs the speed adjusting pattern bracket, and any adjustment all needs non-cutting time, virtually add production cost.
Embodiment four:
The present embodiment is the improvement of embodiment one, two, is the refinement of embodiment one, two about transmission facility.Transmission facility described in the present embodiment is the one in the air pressure of pneumatic cylinder or hydraulic cylinder transmission or hydraulic pressure step-by-step drive system.
The present embodiment utilizes cylinder or hydraulic cylinder to drive the motion of pattern bracket, can be adjusted the movement velocity of cylinder or hydraulic cylinder, to meet the movement velocity ratio of 1/2 by adjustment air intake valve.
Embodiment four:
The present embodiment is the improvement of embodiment one, two, is the refinement of embodiment one, two about transmission facility.Transmission facility described in the present embodiment is described transmission facility is the one driven by servomotor or stepper motor in the numerical control step-by-step system of also control rate.
The present embodiment uses stepper motor and servomotor by mechanical transmission mechanism, and such as the effect of gear, tooth bar or leading screw, feed screw nut, becomes rectilinear motion by rotary motion, drives pattern movement of bracket.Stepper motor or servomotor control adjustment movement velocity, to meet the movement velocity ratio of 1/2 by controller.The advantage of the present embodiment is, can controlled motion speed accurately, and shortcoming is too system complex.
Finally it should be noted that, below only in order to technical scheme of the present invention to be described and unrestricted, although with reference to preferred arrangement scheme to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technical scheme of the present invention (annexation etc. of the form of such as whole device transmission facility and the kind of drive, each key element) or equivalently to replace, and not departing from the spirit and scope of technical solution of the present invention.
Claims (5)
1. the one activity copying apparatus of thread rolling machine, comprise: be arranged on the pattern guide rail on thread rolling machine lathe bed, described pattern guide rail is provided with can at the pattern bracket of pattern slide on rails, it is characterized in that, it is recessed that described pattern bracket is provided with the circular arc matched with excircle of workpiece face, and described pattern bracket is moved with the speed of relative motion screw plate 1/2 by transmission facility.
2. copying apparatus according to claim 1, is characterized in that, the inner peripheral surface that described circular arc is recessed is uniformly distributed rolling element.
3. copying apparatus according to claim 1 and 2, it is characterized in that, described transmission facility comprises: be arranged on the lathe bed tooth bar on lathe bed with pattern guide rail parallel, the sliding rack on thread rolling machine slip blade is installed in parallel in described lathe bed tooth bar, be provided with between described lathe bed tooth bar and sliding rack and lathe bed tooth bar and sliding rack meshed gears simultaneously, the gyroaxis of described gear is arranged on described pattern bracket.
4. copying apparatus according to claim 1 and 2, is characterized in that, described transmission facility is air pressure or the hydraulic pressure step-by-step drive system of pneumatic cylinder or hydraulic cylinder transmission.
5. copying apparatus according to claim 1 and 2, is characterized in that, described transmission facility is driven and the numerical control step-by-step system of control rate by servomotor or stepper motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310235333.8A CN103272975B (en) | 2013-06-14 | 2013-06-14 | Movable profiling device for thread rolling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310235333.8A CN103272975B (en) | 2013-06-14 | 2013-06-14 | Movable profiling device for thread rolling machine |
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| Publication Number | Publication Date |
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| CN103272975A CN103272975A (en) | 2013-09-04 |
| CN103272975B true CN103272975B (en) | 2015-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310235333.8A Active CN103272975B (en) | 2013-06-14 | 2013-06-14 | Movable profiling device for thread rolling machine |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108436003A (en) * | 2018-04-09 | 2018-08-24 | 重庆华瑞标准件制造有限公司 | A kind of bolt processing device |
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|---|---|---|---|---|
| CN2451265Y (en) * | 2000-10-16 | 2001-10-03 | 中国建筑科学研究院建筑结构研究所 | Rolling processing apparatus for reinforcing bar connection screw |
| CN101024474A (en) * | 2006-02-22 | 2007-08-29 | 上海天和制药机械有限公司 | Lifting device |
| CN101549383A (en) * | 2009-05-11 | 2009-10-07 | 陈显国 | Slide thread rolling splint |
| CN102793370A (en) * | 2012-07-28 | 2012-11-28 | 常州市万翔车辆部件有限公司 | Automatic lifting, opening and closing occasional table |
| CN202824479U (en) * | 2012-09-20 | 2013-03-27 | 温州中特标准件有限公司 | Automatic feeding thread-rolling machine with screw bolt |
| CN202827217U (en) * | 2012-07-21 | 2013-03-27 | 长春富维-江森自控汽车饰件系统有限公司 | Automobile seat headrest six-directional electrical regulating mechanism |
| CN202922218U (en) * | 2012-11-20 | 2013-05-08 | 宁波万盛轴业有限公司 | Center frame of screw rolling machine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07112588B2 (en) * | 1987-08-31 | 1995-12-06 | 旭サナック株式会社 | Die adjusting method for flat die rolling machine and die set and gauge body used in the method |
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2013
- 2013-06-14 CN CN201310235333.8A patent/CN103272975B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2451265Y (en) * | 2000-10-16 | 2001-10-03 | 中国建筑科学研究院建筑结构研究所 | Rolling processing apparatus for reinforcing bar connection screw |
| CN101024474A (en) * | 2006-02-22 | 2007-08-29 | 上海天和制药机械有限公司 | Lifting device |
| CN101549383A (en) * | 2009-05-11 | 2009-10-07 | 陈显国 | Slide thread rolling splint |
| CN202827217U (en) * | 2012-07-21 | 2013-03-27 | 长春富维-江森自控汽车饰件系统有限公司 | Automobile seat headrest six-directional electrical regulating mechanism |
| CN102793370A (en) * | 2012-07-28 | 2012-11-28 | 常州市万翔车辆部件有限公司 | Automatic lifting, opening and closing occasional table |
| CN202824479U (en) * | 2012-09-20 | 2013-03-27 | 温州中特标准件有限公司 | Automatic feeding thread-rolling machine with screw bolt |
| CN202922218U (en) * | 2012-11-20 | 2013-05-08 | 宁波万盛轴业有限公司 | Center frame of screw rolling machine |
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| CN103272975A (en) | 2013-09-04 |
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